JPS6425645A - Electronic exchange - Google Patents

Electronic exchange

Info

Publication number
JPS6425645A
JPS6425645A JP18278787A JP18278787A JPS6425645A JP S6425645 A JPS6425645 A JP S6425645A JP 18278787 A JP18278787 A JP 18278787A JP 18278787 A JP18278787 A JP 18278787A JP S6425645 A JPS6425645 A JP S6425645A
Authority
JP
Japan
Prior art keywords
voice response
fault
standby system
discriminated
faulty
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18278787A
Other languages
Japanese (ja)
Inventor
Yukio Kawanami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP18278787A priority Critical patent/JPS6425645A/en
Publication of JPS6425645A publication Critical patent/JPS6425645A/en
Pending legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To prevent the interruption of voice response service by checking a voice reply device of a standby system if an active system is faulty and switching the system into the standby system when the normal operation is confirmed. CONSTITUTION:If a fault or closing is found out in a relevant voice response device by an automatic test for a prescribed period, whether or not the faulty or blocked device is the active system voice response device 1 or the standby system voice response device 2 is discriminated. When the fault exists in the device 1, whether or not the device 2 is in the state of fault blocking, maintenance blocking or sound source circuit fault is discriminated. If one of them suits the case, since the changeover to the standby system is disabled, the sound source is blocked. If not, the changeover to the device 2 is applied by a connection order from the central processing unit 6. Thus, the interruption of the voice response service is prevented.
JP18278787A 1987-07-21 1987-07-21 Electronic exchange Pending JPS6425645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18278787A JPS6425645A (en) 1987-07-21 1987-07-21 Electronic exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18278787A JPS6425645A (en) 1987-07-21 1987-07-21 Electronic exchange

Publications (1)

Publication Number Publication Date
JPS6425645A true JPS6425645A (en) 1989-01-27

Family

ID=16124410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18278787A Pending JPS6425645A (en) 1987-07-21 1987-07-21 Electronic exchange

Country Status (1)

Country Link
JP (1) JPS6425645A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007113848A (en) * 2005-10-20 2007-05-10 Max Co Ltd Air conditioner, its attachment method, and room applying them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007113848A (en) * 2005-10-20 2007-05-10 Max Co Ltd Air conditioner, its attachment method, and room applying them

Similar Documents

Publication Publication Date Title
JPS56153859A (en) Pcm line switching device
US3864533A (en) Automatic line transfer system and method for a communications system
CA2024204A1 (en) Loopback test starting system
JPS6425645A (en) Electronic exchange
KR970031749A (en) Evacuation trunk line return circuit and method in case of power failure in keyphone system
US4056687A (en) Decoupling control arrangement for auxiliary circuits coupled to telephone lines
JP3076925B2 (en) Indoor alarm system
JPS5595490A (en) System switching system for exchange
AU3304489A (en) Circuit arrangement for switching a switching device from normal switching operation to an emergency operation and conversely
JPS57143969A (en) Monitoring method for fault of public telephone and fault signal sending circuit and fault signal monitoring circuit
JPS6469126A (en) Redundant switching system for device taking cold standby
SU1351616A1 (en) Fire=fighting signal and control system
JP3107104B2 (en) Standby redundancy method
JPS6450644A (en) Fault processing system for loop network
JPS59100901A (en) Feeding device of supervisory system
SU1660159A1 (en) Multichannel switch with switchable standby
KR970008998B1 (en) Circuit and method for line simultaneous testing in a full electronic switching system
JPS6020642A (en) Signal separating circuit of duplex device
JPS6436159A (en) Information managing equipment in multiple dwelling house
JPS5840795B2 (en) Return method for set/reset type devices
JPS5839150A (en) Abnormality monitoring system
JPS57141147A (en) Radio telephone set
JPS54160198A (en) Stand-by system for alarm circuit
JPS6424644A (en) System supervisory equipment
JPS56148800A (en) Restoration system for main storage device